3 years ago

PLS HELP SHOW ME HOW TO DO THIS

Mathematics

1 answer:

Arte-miy333 [17]3 years ago

5 0

The answer is 4! So c

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What additional information would be necessary to determine sin(A) without using the Pythagorean theorem?

gogolik [260]

Answer:c

Step-by-step explanation:

3 0

4 years ago

Help please ASAP!!!! I NEED CORRECT ANSWERS ONLY FOR BRAINLIEST

ziro4ka [17]

we are given to find

$a_2_3$

we know that

$a_i_j$

where

i is number of rows

j is number of column

Here , we get

i=2

and j=3

so,

$a_2_3$ means second row and third column

we can look at matrix and find element

we can see that

that element is -21

so,

$a_2_3 =-21$ ...........Answer

7 0

4 years ago

Read 2 more answers

What is the solution to the system below? <br> y = 5x - 9<br> y = x + 3

Nata [24]

Answer:

x=3

y=6

Step-by-step explanation:

y= x+3

5x-9 = x+3

4x= 12

x= 3

Y =6

6 0

3 years ago

What is the value of (tan 65° - tan 35°) / 1 + tan 65°tan 35°?<br> 0<br> 0 V3/3

goldenfox [79]

Answer:

$\frac{ \sqrt{3} }{3}$

Step-by-step explanation:

We know that tangent angle addition formula is

$\tan(a - b) = \frac{ \tan(a) - \tan(b) }{1 + \tan(a) \tan(b) }$

This is in form already. Based on the value, a is 65 and b is 35 so let just subtract that

$\tan(65 - 35) = \tan(30)$

W e know that tan 30 is

$\tan(30) = \frac{ \sin(30) }{ \cos(30) } = \frac{ \frac{1}{2} }{ \frac{ \sqrt{3} }{2} } = \frac{1}{ \sqrt{3} } = \frac{ \sqrt{3} }{3}$

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2 years ago

Chloe has 20 unit cubes how many different rectangular prisms can she build with the cubes

Makovka662 [10]

Cubes are 3D so what 3 numbers multiply to 20
20×1×1
10×2×1
5×4×1
5×2×2
so 4 different shaped cubes

5 0

3 years ago